MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://jacksth.ru/strik?utm_term=dok+level+3+and+4+questions PDF link annotation
- https://cdn-cms.f-static.net/uploads/4481162/normal_6054347b6b7d4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387699/normal_5fda2c3eb5188.pdfIn PDF document text
- http://tetizeniwa.mypressonline.com/80348288085.pdfIn PDF document text
- http://opensalon.xyz/furesx8qic.pdfIn PDF document text
- https://kowenijog.weebly.com/uploads/1/3/4/0/134096242/poginob.pdfIn PDF document text
- http://nuloriwilorij.scienceontheweb.net/concurrency_in_golang.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4421783/normal_5ff14eeba335e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369329/normal_60401cc3ecfff.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4448124/normal_5fee4173d328a.pdfIn PDF document text
- http://detozube.scienceontheweb.net/gupirifodiriwosaji.pdfIn PDF document text
- https://molawaxurot.weebly.com/uploads/1/3/4/6/134699933/dagixubopi-fuvetuminodif-lujijekuxemigor-subifudutineva.pdfIn PDF document text
- https://zobanegasub.weebly.com/uploads/1/3/1/1/131164549/wiweravi-gurogados-raxiwufugefa.pdfIn PDF document text
- http://muzhskoizhurnal.ru/96835383005bxdbo.pdfIn PDF document text
- https://wiriresakuboso.weebly.com/uploads/1/3/4/2/134236055/raradenutomovoj.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://377d1c6c-8747-407e-9a0d-bb8234813250.filesusr.com/ugd/f0b1fd_f511209b88c14e81925e50f0ece2cb2d.pdf?index=trueIn PDF document text
- http://mojigoka.atwebpages.com/salunejuruxilaviwomuxo.pdfIn PDF document text
- https://264cdfe8-48fc-440e-bff3-938583425051.filesusr.com/ugd/cd20dc_f8243012260542909f5360125906e31f.pdf?index=trueIn PDF document text
- https://26577e91-18e8-42c3-8e85-49dcca1d6605.filesusr.com/ugd/195787_cd0b123e375048b5bd2ea1ace7a34740.pdf?index=trueIn PDF document text
- https://466f9527-ada3-48b4-ac0c-4ba5546996ca.filesusr.com/ugd/a4b6b9_a88251f0b33143c28651d97cd8a83b9a.pdf?index=trueIn PDF document text
- https://3df06c22-1e8a-4082-8cc2-a0fdc0609706.filesusr.com/ugd/d86e81_0e563df6cd1e473188884e548e3b6d0c.pdf?index=trueIn PDF document text
- https://e5447efa-8854-4d04-834e-f0bbd7438c8b.filesusr.com/ugd/ac612b_2b99267747c94177a91846f68a0c4625.pdf?index=trueIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f7db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7DB | 5224 bytes |
SHA-256: dd21f0860b3ee49594f93727d8d8e16b7b65a7530f93a3028c75f3b29bcc53f4 |
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font_01_sfnt_off000109c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109C9 | 11108 bytes |
SHA-256: 911e8ea9464e28744fb154e0732f4307552a8ba10b3603ebf29c0d0993b53431 |
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font_02_sfnt_off00012feb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FEB | 16204 bytes |
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e |
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